The one who plants trees, knowing that he will never sit in their shade, has started to understand the meaning of life
- Doctors are increasingly worried about loneliness.
- Vivek Murthy, a former surgeon-general of the United States, called loneliness an epidemic, likening its impact on health to obesity or smoking 15 cigarettes per day.
- A study found that in America people always or often feel lonely.
- A study published in 2010 using this scale estimated that 35% of Americans over 45 were lonely.